ULTRASOUND PHYSICS Name Institution a) Calculate the Acoustic impedance of subcutaneous tissue‚ muscle and bone. Assume subcutaneous tissue has a density of 1060kg/m3 (Hedrick 2003)‚ muscle has a density of 1104kg/m3 (Madjor 2008) and bone has a density of 5065kg/m3 (Hedrick 2003). Give your answer in Mrayls. Please use speed of sound as 1540m/s for tissue‚ muscle and bone In ultrasound‚ Acoustic impedance (Z) is the quantity of measurement of resistance to sound when passing through a medium
Premium Acoustics Sound
decrease. Materials ticker timer‚ ticker tape‚ cart‚ masking tape‚ one 2-m board‚ marker‚ ruler‚ spring scale‚ three 100-g masses‚ two 1.0-kg masses‚ string‚ Procedure Part A: Acceleration and Net Force 1. Verify that the equipment you intend to use is functioning properly. 2. Measure the mass of the cart and record it in the observation table. 3. Set up the apparatus so that the least net force will act on the cart. Allow the motion to occur and obtain the data required to find the acceleration
Premium Force Newton's laws of motion Mass
man to win friends easily. Good manners are vital for success in life. Nobody likes a rude person‚ but good manners endear a man to other. Good manners are true signs of civilization. Good manners cost nothing‚ but they bring about handsome rewards. When someone says "please" or "thank you" he actually finds himself in the midst of cheerful crowd. When someone is polite and soft spoken‚ he gets over many difficult situations in life. Good manners and courtesies are not‚ however‚ born with us. They
Premium Agriculture Human Manners
the parachute on a small doll. 2. Measure the mass of the parachute that with the small doll and record the data. 3. Turn on the fan/parachute to 2.5meters high. 4. Put the fan/parachute on a chair and don’t move it. 5. Drop the parachute. 6. Use the ruler to measure the distance and record. Safety: Not to hurt anyone when you drop the parachute. Data and calculation: No air resistance Fan The hair drier (small wind force) The hair drier (big wind force) Two
Premium Measurement Wind Force
path below the coil until you’ve put it on the opposite side of the coil. Describe what happens to the compass needle. 14. How many complete rotations does the compass needle make when the compass is moved once around the coil? 15. Use the voltage slider to change the direction of the current and repeat the steps above for the coil after you’ve let the compass stabilize. 16. Based on your observations‚
Premium Magnetic field Electromagnetism Magnet
before stopping. (D) The 2 kg mass travels greater than twice as far. (E) None of the above The correct answer is (B) The 2-kg mass travels twice as far as the 4 kg mass before stopping. To calculate the distance the object will slide one can use the work-energy theorem that states that the work done to a system is equal to the system’s change in energy. Here‚ the object starts with kinetic energy [KE = (mv^2)/2] and friction brings it to rest by doing an equivalent amount of work. Work
Premium Mass Force Friction
Gabrino‚ Juan Miguel M. ENGPHY1‚ 1. As I observed while riding both the Dodgem and Bump n’ Splash the direction of the force when my friends bumped me was same with the direction where the car of my friends are headed. According to Newton’s second law‚ an object that experiences an unbalance force will accelerate in the direction of the unbalanced force. 2. While riding the wheel of fate while it is continuously moving I felt the greatest acceleration at the bottom of the Ferris wheel
Free Force
The lndian High School Revision -Term 1 Grade:9 Answer as many as Possible: ffi 4) State universal law of gravitation Express it mathematically. Differentiate between G’ and 91 in tabtrlat fotm’ 3) (a) What is acceleration ? Write ib unit. velocity’ bi I)t"* velocity-time graPh‚ when an obiect has (i) unifortdy accelerated (ii) uniformly retarded velocity. fror" that if u Uoayi" thrown ve*ically upwatd‚ the time of ascent is equal to the time ffi of descent. Th;;r*h .ttracts the
Premium Mass Velocity Classical mechanics
The graph below is a plot of displacement versus time of a mass oscillating on a spring. 73. At which point on the graph is the acceleration of the mass zero? a. A c. C b. B d. D 74. At which point on the graph is the velocity of the mass zero? a. A c. C b. B
Premium Sound Wave Wavelength
Equations of Motion Worksheet 1. A car moving at a velocity of 25 m/s‚ accelerates at a rate of 6 m/s2. Find its velocity after 3s. 2. An object is dropped from rest. Calculate its velocity after 2.5s if it is dropped: a. On Earth‚ where the acceleration due to gravity is 9.8m/s2. b. On Mars‚ where the acceleration due to gravity is 3.8m/s2. 3. A motorbike is travelling with a velocity of 3m/s. It accelerates at a rate of 9.3m/s for 1.8s. Calculate the distance it travels in this time. 4. A Tesla
Premium Acceleration Velocity Kinematics